Probleme bei der klinischen Bearbeitung von keramischen Restaurationen und die Auswirkungen auf die Stabilität

Lernziele

Der Leser soll nach dem Durcharbeiten des Artikels:

• den Verstärkungsmechanismus von Zirkoniumdioxid verstehen,

• wissen, welche Umstände die Dauerfestigkeit von Zirkoniumdioxid limitieren,

• die Auswirkungen von Oberflächenbearbeitungen an Zirkoniumdioxid überblicken,

• die Wirkung von Einschleif- und Poliermaßnahmen auf Verblendkeramiken wissen,

• die aus Werkstoffsicht empfohlene Maßnahme nach dem Einschleifen von Störkontakten kennen.

• Literatur

• 1 Al-Amleh B, Lyons K, Swain M. Clinical trials in zirconia: a systematic review. J Oral Rehabil 2010; 37: 641-652
• 2 Beuer F, Schweiger J, Edelhoff D. Digital dentistry: An overview of recent developments for CAD/CAM generated restorations. Br Dent J 2008; 204: 505-511
• 3 Ren L, Janal M, Zhang Y. Sliding contact fatigue of graded zirconia with external esthetic glass. J Dent Res 2011; 0: 116-121
• 4 Hannink R, Kelly P, Muddle B. Transformation Toughening in Zirconia-Containing Ceramics. Journal of the American Ceramic Society 2000; 83: 461-487
• 5 Calès B, Stefani Y, Olagnon C et al. Mechanical characterization of a zirconia ceramic used as implant material. Bioceramics 1993; 6: 259-264
• 6 Kelly R, Denry I. Stabilized zirconia as a structural ceramic: An overview. Dent Mater 2008; 24: 289-298
• 7 Lughi V, Sergo V. Low temperature degradation -aging- of zirconia: A critical review of the relevant aspects in dentistry. Dent Mater 2010; 26: 807-820
• 8 Wiederhorn S, Freimann S, Fuller E et al. Effects of water and other dielectrics on crack growth. J Mat Sci 1983; 17: 265-265
• 9 Mante F, Brantley W, Dhuru V et al. Fractue toughness of high aluminia core dental ceramics: The effect of water and artificial saliva. Int J Prosthodont 1993; 6: 546-552
• 10 Geis-Gerstorfer J, Fäßler P. Untersuchungen zur Bruch- und Dauerfestigkeit der Dentalkeramiken Zirkonoxid-TZP und In-Ceram. Dtsch Zahnärztl Z 1999; 54: 692-694
• 11 Geis-Gerstorfer J, Fäßler P, Kirmeier R. Fatigue behavior of three all ceramic materials. J Dent Res 2002; 81: 3835-3835
• 12 Aboushelib M, Kleverlaan C, Feilzer A. Effect of zirconia type on its bond strength with different veneer ceramics. J Prosthodont 2008; 17: 401-408
• 13 Heintze S, Rousson V. Survival of zirconia- and metal-supported fixed dental prostheses: a systematic review. Int J Prosthodont 2010; 23: 493-502
• 14 Fischer J, Stawarzcyk B, Trottmann A et al. Impact of thermal misfit on shear strength of veneering ceramic/zirconia composites. Dent Mater 2009; 25: 419-423
• 15 Belli R, Monteiro Jr S, Baratieri LN et al. A photoelastic assessment of residual stresses in zirconia-veneer crowns. J Dent Res 2012; 91: 316-320
• 16 de Jager N, Pallav P, Feilzer A. The influence of design parameters on the FEA-determined stress distribution in CAD-CAM produced all-ceramic dental crowns. Dent Mater 2005; 21: 242-51
• 17 Tholey M, Swain M, Thiel N. Thermal gradients and residual stresses in Y-TZP frameworks. Dent Mater 2011; 27: 1102-1110
• 18 de Jager N, Feilzer A, Davidson C. The influence of surface roughness on porcelain strength. Dent Mater 2000; 16: 381-388
• 19 Green D. A technique for introducing surface compression into zirconia ceramics. J Am Ceram Soc 1983; 66
• 20 Kosmac T. The effects of dental grinding and sandblasting on ageing and fatigue behavior of dental zirconia (Y-TZP) ceramics. Journal of the European Ceramic Society 2008; 28: 1085-1090
• 21 Swain M. Limitation of maximum strength of zirconia-toughened ceramics by transformation toughening increment. J Am Ceram Soc 1985; 68: 97-99
• 22 Guazzato M, Quach L, Albakry M et al. Influence of surface and heat treatments on the flexural strength of Y-TZP dental ceramic. J Dent 2005; 33: 9-18
• 23 Xu H, Jahanmir S, Ives L. Effect of grinding on strength of tetragonal zirconia and zirconia-toughened alumina. Machining Science and Technology 1997; 1: 49-66
• 24 Curtis A, Wright A, Fleming G. The influence of surface modification techniques on the performance of a Y-TZP dental ceramic. J Dent 2006; 34: 195-206
• 25 Fokas G. Influence of the surface and heat treatment on the flexural strength and reliability of Y-TZP dental ceramic. Dissertation, Medizinische Fakultät der Universität Tübingen 2010
• 26 Papanagiotou H, Morgano S, Giordano R et al. In vitro evaluation of low-temperature aging effects and finishing procedures on the flexural strength and structural stability of Y-TZP dental ceramics. J Prosthet Dent 2006; 96: 154-5464
• 27 de Kler M, de Jager N, Meegdes M et al. Influence of thermal expansion mismatch and fatigue loading on phase changes in porcelain veneered Y-TZP zirconia discs. J Oral Rehabil 2007; 34: 841-847
• 28 Fischer H, Schäfer M, Marx R. Effect of surface roughness on flexural strength of veneer ceramics. J Dent Res 2003; 82: 972-975
• 29 Lohbauer U, Müller F, Petschelt A. Influence of surface roughness on mechanical strength of resin composite versus glass ceramic materials Dent Mater. 2008; 24: 250-256
• 30 Goldammer C. Einfluss der Oberflächenbearbeitung auf die Biegefestigkeit von verblendetem Zirkoniumdioxid. Dissertation, Medizinische Fakultät der Universität Tübingen 2012